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    <meta charset="UTF-8">
    <title>列表</title>
    <style type="text/css">
        ul{
            list-style-type:square;/* disc实心圆; circle空心圆; square实心正方形; none无样式 */
            list-style-image:url(img/html-tags2.png);
        }
        .one{
            /* list-style-position:outside; */
            list-style:none url(img/html-tags2.png) inside;
        }
        .two{
            list-style-position:inside;
        }
        ol{
            list-style-type:lower-alpha;/* decimal数字; lower-roman小写罗马数字; upper-roman大写罗马数字; lower-alpha小写字母;  */
            list-style-image:url(img/html-tags2.png);
        }
    </style>
</head>
<body>
    <ul class="one">
        <li>多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）</li>
        <li>网络编程（UDP TCP Socket）</li>
        <li>枚举类型</li>
        <li>类的加载机制和反射（Reflect）</li>
    </ul>
    <ul class="two">
        <li>多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）多线程（Thread Runnable）</li>
        <li>网络编程（UDP TCP Socket）</li>
        <li>枚举类型</li>
        <li>类的加载机制和反射（Reflect）</li>
    </ul>
    <ol>
        <li>多线程（Thread Runnable）</li>
        <li>网络编程（UDP TCP Socket）</li>
        <li>枚举类型</li>
        <li>类的加载机制和反射（Reflect）</li>
    </ol>
</body>
</html>